(Solved): can you solve A water main is to be constructed with a 25% grade in the north direction and a 1 ...

can you solve

A water main is to be constructed with a $25\%$ grade in the north direction and a $10\%$ grade in the east direction. Determine the angle $?$ required in the water main for the lum from north to east $0=?$ radians (Type your answer in radians. Round to the nearest hundredth as needed.)